Impact analysis of input parameter for damage detection code

Slovak University of Technology in Bratislava, Faculty of Civil Engineering, Department of Structural Mechanics, Radlinskeho 11, 81005, Bratislava, Slovakia

^* Corresponding author: michal.venglar@stuba.sk

Abstract

The primary aim of the article is to analyse impact of appropriate values of input parameter for an effective solution of the self-developed code used for damage detection. The code was prepared to determine the change of bending stiffness in Microsoft Office Excel Visual Basic for Applications. The code used non-destructive vibration based method, i.e. the FE model updating method. A steel bar was assumed for numerical calculation. Time consumption of calculation, precision of identification and degree of possible damage detection were investigated. The values of computation time depend on the input values, the desired limit of the accepted error. Then, data from a laboratory experiment was analysed. The damage detection was done in accordance with the suitable input data from a parametric study of the steel bar.